“I think I read that as the leaves grow that I should add more soil, just to the height of the leaves, so that they produce new potatoes under that new soil. Is that right?”
Not so much the leaves growing, but the STEMS.
And be stingy with the fertilizer; you’ll get lots of leaves and small potatoes. Avoid too much Nitrogen. A 10-10-10 like Miracle Grow is fine to start with.
“The best fertilizer for potatoes typically has a balanced ratio of nitrogen, phosphorus, and potassium (NPK), such as 10-10-10 or 14-7-21, to support healthy growth and tuber development. It’s important to choose a fertilizer that is lower in nitrogen during the tuber bulking phase to prevent excessive vine growth at the expense of tuber size.”
The ‘tuber bulking phase’ is AFTER the potatoes have bloomed and the plant gets busy making taters. :)
Ok thank you! That’s very helpful!